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                 Quantifying geometric relation and suspended sediment transport in the Lower Yellow River

                                                      1            2          3

                                           FEI Xiangjun ,SHU Anping ,WANG Le




                               (1. Department of Hydraulic Engineering,Tsinghua University,Beijing  100084,China;




                   2. School of Environment,Key Lab of Water and Sediment Sciences of MOE,Beijing Normal University,Beijing  100875,China;



                     3. School of Water Resources and Hydropower Engineering,North China Electric Power University,Beijing  102206,China)

                Abstract:The Yellow River is characterized by high sediment concentration and demonstrates a significant role in

                shaping the river’s evolution. However,most earlier studies predominantly focused on the flow magnitude and paid

                inadequate  attention  to  the  effect  of  sediment  concentration.  As  a  result,the  existing  river  facies  relationships  are
                insufficient  to  explain  the  key  issues,including  river  geometric  variability  and  reach-scale  channel  patterns.  To

                address  this  gap,the  present  study  aims  to  develop  a  new  set  of  hydro-sediment  geometric  relations  for  the  lower

                Yellow  River  through  considering  the  sediment-concentration  influence  as  well  as  incorporating  the  stable  channel
                width criterion. These relations offer a quantitative characterization of sediment-laden capacity,non-settling velocity

                and bank-full discharge associated with sediment entrainment in the lower Yellow River. The findings of this research
                provide a scientific basis for promoting the river regulation and sustainable development in this basin.





                Keywords:lower  Yellow  River;geometric  relation;sediment  concentration;sediment  entrainment;quantitative
                characterization
                                                                             (责任编辑:鲁  婧  韩  昆)





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